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Lutz Claes - One of the best experts on this subject based on the ideXlab platform.
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A new bioresorbable polymer for screw augmentation in the osteosynthesis of osteoporotic cancellous bone: a biomechanical evaluation.
Journal of Biomedical Materials Research, 2001Co-Authors: Anita Ignatius, Peter Augat, Michael Ohnmacht, Peter Pokinskyj, Hans–jürgen Kock, Lutz ClaesAbstract:The aim of the study was to assess the mechanical efficacy of a new resorbable polymer developed on the basis of alkylene bis(dilactoyl)-methacrylate to improve the anchorage of osteosynthesis material in cancellous bone. Cancellous bone screws were inserted in bovine as well as in human vertebrae and human femoral condyles and were augmented with the new polymer or polymethylmethacrylate (PMMA), respectively. Nonaugmented screws were used as controls. A removal torque Test, a Dynamic Fatigue Test, and a pullout Test were performed. Augmentation with the new polymer increased the removal torque by 84% in human femoral bone. In the Dynamic Fatigue Test of bovine vertebrae, the removal torque after cyclic loading was 115% higher for the new polymer compared to the nonaugmented controls. In the human vertebrae, the reinforcement with the new polymer increased the removal torque after Dynamic loading by 114%. The augmentation with the new polymer increased the pullout force by 88% in bovine vertebrae and by 118% in human vertebrae in comparison to nonaugmented screws. It was concluded that augmentation by the new resorbable polymer significantly enhanced the anchorage of bone screws in cancellous bone. The mechanical efficiency of the new polymer was comparable to that of PMMA cement.
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a new bioresorbable polymer for screw augmentation in the osteosynthesis of osteoporotic cancellous bone a biomechanical evaluation
Journal of Biomedical Materials Research, 2001Co-Authors: Anita Ignatius, Peter Augat, Michael Ohnmacht, Peter Pokinskyj, Hans Jurgen Kock, Lutz ClaesAbstract:The aim of the study was to assess the mechanical efficacy of a new resorbable polymer developed on the basis of alkylene bis(dilactoyl)-methacrylate to improve the anchorage of osteosynthesis material in cancellous bone. Cancellous bone screws were inserted in bovine as well as in human vertebrae and human femoral condyles and were augmented with the new polymer or polymethylmethacrylate (PMMA), respectively. Nonaugmented screws were used as controls. A removal torque Test, a Dynamic Fatigue Test, and a pullout Test were performed. Augmentation with the new polymer increased the removal torque by 84% in human femoral bone. In the Dynamic Fatigue Test of bovine vertebrae, the removal torque after cyclic loading was 115% higher for the new polymer compared to the nonaugmented controls. In the human vertebrae, the reinforcement with the new polymer increased the removal torque after Dynamic loading by 114%. The augmentation with the new polymer increased the pullout force by 88% in bovine vertebrae and by 118% in human vertebrae in comparison to nonaugmented screws. It was concluded that augmentation by the new resorbable polymer significantly enhanced the anchorage of bone screws in cancellous bone. The mechanical efficiency of the new polymer was comparable to that of PMMA cement. © 2001 John Wiley & Sons, Inc. J Biomed Mater Res (Appl Biomater) 58: 254–260, 2001
Anita Ignatius - One of the best experts on this subject based on the ideXlab platform.
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A new bioresorbable polymer for screw augmentation in the osteosynthesis of osteoporotic cancellous bone: a biomechanical evaluation.
Journal of Biomedical Materials Research, 2001Co-Authors: Anita Ignatius, Peter Augat, Michael Ohnmacht, Peter Pokinskyj, Hans–jürgen Kock, Lutz ClaesAbstract:The aim of the study was to assess the mechanical efficacy of a new resorbable polymer developed on the basis of alkylene bis(dilactoyl)-methacrylate to improve the anchorage of osteosynthesis material in cancellous bone. Cancellous bone screws were inserted in bovine as well as in human vertebrae and human femoral condyles and were augmented with the new polymer or polymethylmethacrylate (PMMA), respectively. Nonaugmented screws were used as controls. A removal torque Test, a Dynamic Fatigue Test, and a pullout Test were performed. Augmentation with the new polymer increased the removal torque by 84% in human femoral bone. In the Dynamic Fatigue Test of bovine vertebrae, the removal torque after cyclic loading was 115% higher for the new polymer compared to the nonaugmented controls. In the human vertebrae, the reinforcement with the new polymer increased the removal torque after Dynamic loading by 114%. The augmentation with the new polymer increased the pullout force by 88% in bovine vertebrae and by 118% in human vertebrae in comparison to nonaugmented screws. It was concluded that augmentation by the new resorbable polymer significantly enhanced the anchorage of bone screws in cancellous bone. The mechanical efficiency of the new polymer was comparable to that of PMMA cement.
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a new bioresorbable polymer for screw augmentation in the osteosynthesis of osteoporotic cancellous bone a biomechanical evaluation
Journal of Biomedical Materials Research, 2001Co-Authors: Anita Ignatius, Peter Augat, Michael Ohnmacht, Peter Pokinskyj, Hans Jurgen Kock, Lutz ClaesAbstract:The aim of the study was to assess the mechanical efficacy of a new resorbable polymer developed on the basis of alkylene bis(dilactoyl)-methacrylate to improve the anchorage of osteosynthesis material in cancellous bone. Cancellous bone screws were inserted in bovine as well as in human vertebrae and human femoral condyles and were augmented with the new polymer or polymethylmethacrylate (PMMA), respectively. Nonaugmented screws were used as controls. A removal torque Test, a Dynamic Fatigue Test, and a pullout Test were performed. Augmentation with the new polymer increased the removal torque by 84% in human femoral bone. In the Dynamic Fatigue Test of bovine vertebrae, the removal torque after cyclic loading was 115% higher for the new polymer compared to the nonaugmented controls. In the human vertebrae, the reinforcement with the new polymer increased the removal torque after Dynamic loading by 114%. The augmentation with the new polymer increased the pullout force by 88% in bovine vertebrae and by 118% in human vertebrae in comparison to nonaugmented screws. It was concluded that augmentation by the new resorbable polymer significantly enhanced the anchorage of bone screws in cancellous bone. The mechanical efficiency of the new polymer was comparable to that of PMMA cement. © 2001 John Wiley & Sons, Inc. J Biomed Mater Res (Appl Biomater) 58: 254–260, 2001
Peter Pokinskyj - One of the best experts on this subject based on the ideXlab platform.
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A new bioresorbable polymer for screw augmentation in the osteosynthesis of osteoporotic cancellous bone: a biomechanical evaluation.
Journal of Biomedical Materials Research, 2001Co-Authors: Anita Ignatius, Peter Augat, Michael Ohnmacht, Peter Pokinskyj, Hans–jürgen Kock, Lutz ClaesAbstract:The aim of the study was to assess the mechanical efficacy of a new resorbable polymer developed on the basis of alkylene bis(dilactoyl)-methacrylate to improve the anchorage of osteosynthesis material in cancellous bone. Cancellous bone screws were inserted in bovine as well as in human vertebrae and human femoral condyles and were augmented with the new polymer or polymethylmethacrylate (PMMA), respectively. Nonaugmented screws were used as controls. A removal torque Test, a Dynamic Fatigue Test, and a pullout Test were performed. Augmentation with the new polymer increased the removal torque by 84% in human femoral bone. In the Dynamic Fatigue Test of bovine vertebrae, the removal torque after cyclic loading was 115% higher for the new polymer compared to the nonaugmented controls. In the human vertebrae, the reinforcement with the new polymer increased the removal torque after Dynamic loading by 114%. The augmentation with the new polymer increased the pullout force by 88% in bovine vertebrae and by 118% in human vertebrae in comparison to nonaugmented screws. It was concluded that augmentation by the new resorbable polymer significantly enhanced the anchorage of bone screws in cancellous bone. The mechanical efficiency of the new polymer was comparable to that of PMMA cement.
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a new bioresorbable polymer for screw augmentation in the osteosynthesis of osteoporotic cancellous bone a biomechanical evaluation
Journal of Biomedical Materials Research, 2001Co-Authors: Anita Ignatius, Peter Augat, Michael Ohnmacht, Peter Pokinskyj, Hans Jurgen Kock, Lutz ClaesAbstract:The aim of the study was to assess the mechanical efficacy of a new resorbable polymer developed on the basis of alkylene bis(dilactoyl)-methacrylate to improve the anchorage of osteosynthesis material in cancellous bone. Cancellous bone screws were inserted in bovine as well as in human vertebrae and human femoral condyles and were augmented with the new polymer or polymethylmethacrylate (PMMA), respectively. Nonaugmented screws were used as controls. A removal torque Test, a Dynamic Fatigue Test, and a pullout Test were performed. Augmentation with the new polymer increased the removal torque by 84% in human femoral bone. In the Dynamic Fatigue Test of bovine vertebrae, the removal torque after cyclic loading was 115% higher for the new polymer compared to the nonaugmented controls. In the human vertebrae, the reinforcement with the new polymer increased the removal torque after Dynamic loading by 114%. The augmentation with the new polymer increased the pullout force by 88% in bovine vertebrae and by 118% in human vertebrae in comparison to nonaugmented screws. It was concluded that augmentation by the new resorbable polymer significantly enhanced the anchorage of bone screws in cancellous bone. The mechanical efficiency of the new polymer was comparable to that of PMMA cement. © 2001 John Wiley & Sons, Inc. J Biomed Mater Res (Appl Biomater) 58: 254–260, 2001
Michael Ohnmacht - One of the best experts on this subject based on the ideXlab platform.
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A new bioresorbable polymer for screw augmentation in the osteosynthesis of osteoporotic cancellous bone: a biomechanical evaluation.
Journal of Biomedical Materials Research, 2001Co-Authors: Anita Ignatius, Peter Augat, Michael Ohnmacht, Peter Pokinskyj, Hans–jürgen Kock, Lutz ClaesAbstract:The aim of the study was to assess the mechanical efficacy of a new resorbable polymer developed on the basis of alkylene bis(dilactoyl)-methacrylate to improve the anchorage of osteosynthesis material in cancellous bone. Cancellous bone screws were inserted in bovine as well as in human vertebrae and human femoral condyles and were augmented with the new polymer or polymethylmethacrylate (PMMA), respectively. Nonaugmented screws were used as controls. A removal torque Test, a Dynamic Fatigue Test, and a pullout Test were performed. Augmentation with the new polymer increased the removal torque by 84% in human femoral bone. In the Dynamic Fatigue Test of bovine vertebrae, the removal torque after cyclic loading was 115% higher for the new polymer compared to the nonaugmented controls. In the human vertebrae, the reinforcement with the new polymer increased the removal torque after Dynamic loading by 114%. The augmentation with the new polymer increased the pullout force by 88% in bovine vertebrae and by 118% in human vertebrae in comparison to nonaugmented screws. It was concluded that augmentation by the new resorbable polymer significantly enhanced the anchorage of bone screws in cancellous bone. The mechanical efficiency of the new polymer was comparable to that of PMMA cement.
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a new bioresorbable polymer for screw augmentation in the osteosynthesis of osteoporotic cancellous bone a biomechanical evaluation
Journal of Biomedical Materials Research, 2001Co-Authors: Anita Ignatius, Peter Augat, Michael Ohnmacht, Peter Pokinskyj, Hans Jurgen Kock, Lutz ClaesAbstract:The aim of the study was to assess the mechanical efficacy of a new resorbable polymer developed on the basis of alkylene bis(dilactoyl)-methacrylate to improve the anchorage of osteosynthesis material in cancellous bone. Cancellous bone screws were inserted in bovine as well as in human vertebrae and human femoral condyles and were augmented with the new polymer or polymethylmethacrylate (PMMA), respectively. Nonaugmented screws were used as controls. A removal torque Test, a Dynamic Fatigue Test, and a pullout Test were performed. Augmentation with the new polymer increased the removal torque by 84% in human femoral bone. In the Dynamic Fatigue Test of bovine vertebrae, the removal torque after cyclic loading was 115% higher for the new polymer compared to the nonaugmented controls. In the human vertebrae, the reinforcement with the new polymer increased the removal torque after Dynamic loading by 114%. The augmentation with the new polymer increased the pullout force by 88% in bovine vertebrae and by 118% in human vertebrae in comparison to nonaugmented screws. It was concluded that augmentation by the new resorbable polymer significantly enhanced the anchorage of bone screws in cancellous bone. The mechanical efficiency of the new polymer was comparable to that of PMMA cement. © 2001 John Wiley & Sons, Inc. J Biomed Mater Res (Appl Biomater) 58: 254–260, 2001
Peter Augat - One of the best experts on this subject based on the ideXlab platform.
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A new bioresorbable polymer for screw augmentation in the osteosynthesis of osteoporotic cancellous bone: a biomechanical evaluation.
Journal of Biomedical Materials Research, 2001Co-Authors: Anita Ignatius, Peter Augat, Michael Ohnmacht, Peter Pokinskyj, Hans–jürgen Kock, Lutz ClaesAbstract:The aim of the study was to assess the mechanical efficacy of a new resorbable polymer developed on the basis of alkylene bis(dilactoyl)-methacrylate to improve the anchorage of osteosynthesis material in cancellous bone. Cancellous bone screws were inserted in bovine as well as in human vertebrae and human femoral condyles and were augmented with the new polymer or polymethylmethacrylate (PMMA), respectively. Nonaugmented screws were used as controls. A removal torque Test, a Dynamic Fatigue Test, and a pullout Test were performed. Augmentation with the new polymer increased the removal torque by 84% in human femoral bone. In the Dynamic Fatigue Test of bovine vertebrae, the removal torque after cyclic loading was 115% higher for the new polymer compared to the nonaugmented controls. In the human vertebrae, the reinforcement with the new polymer increased the removal torque after Dynamic loading by 114%. The augmentation with the new polymer increased the pullout force by 88% in bovine vertebrae and by 118% in human vertebrae in comparison to nonaugmented screws. It was concluded that augmentation by the new resorbable polymer significantly enhanced the anchorage of bone screws in cancellous bone. The mechanical efficiency of the new polymer was comparable to that of PMMA cement.
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a new bioresorbable polymer for screw augmentation in the osteosynthesis of osteoporotic cancellous bone a biomechanical evaluation
Journal of Biomedical Materials Research, 2001Co-Authors: Anita Ignatius, Peter Augat, Michael Ohnmacht, Peter Pokinskyj, Hans Jurgen Kock, Lutz ClaesAbstract:The aim of the study was to assess the mechanical efficacy of a new resorbable polymer developed on the basis of alkylene bis(dilactoyl)-methacrylate to improve the anchorage of osteosynthesis material in cancellous bone. Cancellous bone screws were inserted in bovine as well as in human vertebrae and human femoral condyles and were augmented with the new polymer or polymethylmethacrylate (PMMA), respectively. Nonaugmented screws were used as controls. A removal torque Test, a Dynamic Fatigue Test, and a pullout Test were performed. Augmentation with the new polymer increased the removal torque by 84% in human femoral bone. In the Dynamic Fatigue Test of bovine vertebrae, the removal torque after cyclic loading was 115% higher for the new polymer compared to the nonaugmented controls. In the human vertebrae, the reinforcement with the new polymer increased the removal torque after Dynamic loading by 114%. The augmentation with the new polymer increased the pullout force by 88% in bovine vertebrae and by 118% in human vertebrae in comparison to nonaugmented screws. It was concluded that augmentation by the new resorbable polymer significantly enhanced the anchorage of bone screws in cancellous bone. The mechanical efficiency of the new polymer was comparable to that of PMMA cement. © 2001 John Wiley & Sons, Inc. J Biomed Mater Res (Appl Biomater) 58: 254–260, 2001
